Oil Pump Installation. Chevrolet PJJ 2000

For 1990-2009 cars

1. Install the oil pump cover to the balance shaft housing.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the oil pump bolts to the balance shaft housing.

Tighten

• | Tighten the pump to housing long bolts to 12 N·m (106 lb in).

• | Tighten the pump to housing short bolts to 10 N·m (89 lb in).

3. Install the balance shaft chain guide.

Important: A brass feeler gauge needs to be used to ensure correct measurements are obtained. If a steel gauge is used, the steel gauge will not bend to conform to the guide and will cause incorrect measurements.

4. Use the following procedure to adjust the balance shaft drive chain tension:

4.1. | Inserting a 1 mm (0.040 in) brass feeler gauge between the chain guide and the chain.

4.2. | Press the guide against the chain. Use about three pounds of force.

4.3. | Tighten the chain fastener bolt.

Tighten
Tighten the bolt to 13 N·m (115 lb in).

5. Install the balance shaft chain cover.
6. Install the balance shaft chain cover nut and bolt.

Tighten
Tighten the nut and bolt to 13 N·m (115 lb in).